The game is incredible (to many people, you might not like it as much, though it would make no sense checking the movie, if that is true), but the animated movie (with a sub-story involving a major character from Mass Effect 3 (but not Shepard himself) is nicely told, but there is never a real Mass Effect feeling. It never got hold of me that is.
The cartoon style is made differently than the one of the game on purpose. You might find that one of the reasons you might not connect. You cannot deny EA that they were trying. There is some fun dialog in the movie, but it never evolves to anything more. The question also would be, does it make sense watching it before Mass Effect 3 or after you played it? I watched it after, it's OK as companion piece, but I won't revisit this again (which cannot be said about the games ... re-playable a lot)
The cartoon style is made differently than the one of the game on purpose. You might find that one of the reasons you might not connect. You cannot deny EA that they were trying. There is some fun dialog in the movie, but it never evolves to anything more. The question also would be, does it make sense watching it before Mass Effect 3 or after you played it? I watched it after, it's OK as companion piece, but I won't revisit this again (which cannot be said about the games ... re-playable a lot)