Momentum is not a good film and in being honest, I couldn't finish it. I liked Olga Kurylenko in Oblivion and although Quantum of Solace wasn't a good Bond film, Olga was okay in it. But she's just not believable in Momentum and a large part of that has to do with how the film is shot and then the script. The director uses far too many quick cuts for not just action sequences but also mundane things. There are also too many hand held "shaky cam" shots that end up looking sloppy. Then throw in combat scenes and it just gets worse. It's like the music video style of film making when the director doesn't have the talent to tell the story with skill so relies on gimmicks instead.
The combat sequences are a hot mess as they're plagued by the same problems mentioned above. Too many quick cuts/fast edits in combination with shaky cam shots with the camera being too close to the action to the point that it's hard for the viewer to actually see the technique being used in the fights. It's like amateur night at the Apollo for directors. This style of filming action sequences is also popular for films that feature actors that have little to no stage fighting ability. Keep the edits fast and the camera close to give the impression that the lead is better than he/she actually is. This is why you don't see Donnie Yen as an example filming fight scenes in the style used in Momentum because he can believably carry a fight scene, is very particular about which fighting style his characters use with the goal of showcasing those techniques on camera. In short, Donnie Yen knows what he's doing.
The other problem is the script. In short, it's stupid. The way the story is being told, we're shown a bank heist with no context. Characters with no development and there is a horrible lack of consistency with what little details we are given. For example, when the bank robbers are emptying the diamonds into a small bag, a computer component falls into the bag as well. This component is not that small that it should have gone unnoticed, but it does. That was a total "huh" moment as these robbers obviously paid attention to a lot of detail to plan this heist but somehow they missed the component even though it fell into the bag right in front of them.
Another instance, Olga goes to see her partner Kevin (?) in his hotel room. There's a knock at the door and he tells Olga to hide because that's his contact in a blackmail scheme and she'll run if she knows he's not alone. The irritating bit about this is, a guy who looked like a hotel employee saw Olga go into Kevin's room before his contact showed. The guy is apparently a hit man (read: not a hotel employee) and crashes into Kevin's room with his contact at gun point as well as a crew of typically over-the-top henchmen. For the hit man to supposedly be a professional, he never mentioned or even looked for Olga in the room even though there's a standing order of "no witnesses" and he JUST SAW HER go into the room not even 5 minutes prior. I made it through 49 minutes of the film and in that time there are too many of these "come on now" moments in the film. Momentum tries so hard to be edgy that it stumbles over its own ambition and ends up being a wreck of a film.
One more, one of the bank robbers was apparently a junkie that was high as a kite during the heist. Not only did this clown jeopardize the heist, he tried to kill Olga which resulted in him being shot to death instead. When the bank robbers are in their get away van, one of them freaks out because their bank robber buddy is dead and Olga killed him. Well, he definitely would care more than the audience would because nothing was revealed about him. Not even what he looked like so why should we care as an audience? Bank robber "D" was a junkie low life that needed to be put down by one of his crew. Oh, okay...why should we care? That's how it came off.
1*. The action genre deserves better than this. Tell the story in a convincing way. Give the viewer a reason to care about what's going on. Give some type of character development early to make it interesting and again, give us a reason to care. If The Matrix has taught us anything, it's that even if your lead actor/actress doesn't have fighting skills on camera, that's no excuse. Train them. Hard. Otherwise the lame fight scenes in Momentum is what you get.
This film should have been much better than it is but if what should have happened was a definite then Hillary would be running for re-election, COVID-19 would be something we're talking about in the past tense and the last Star Wars trilogy should have never happened. Ever.