I would say mostly no (a few are decent) because they are never accurate to the source material (e.g. live action Street Fighter or Super Mario Bros) but this doesn't mean it should be 100% accurate (think of like live action comic films compare to the comic itself).
The only good game films I have seen is Mortal Kombat and Silent Hill although people complain that Silent Hill was like watching someone playing the game but shouldn't a good game film be like that?
If you are going to include animated game films like Street Fighters then those animated films are miles better.
Since you mention improvement then I can only suggest keeping it faithful and I think it should be like watching the person playing the game since I think that how game movie should be like.
The only good game films I have seen is Mortal Kombat and Silent Hill although people complain that Silent Hill was like watching someone playing the game but shouldn't a good game film be like that?
If you are going to include animated game films like Street Fighters then those animated films are miles better.
Since you mention improvement then I can only suggest keeping it faithful and I think it should be like watching the person playing the game since I think that how game movie should be like.