Had a full response typed out and hit f5 by mistake so excuse the quality on this response 🙁
Everything i'm saying is my opinion and not fact
Is that hard to make a good movie based on a videogame
It is tricky to make a good movie based on a videogame because everyone's playthrough of a game is a different experience, whether it be a small or large difference, everyone's playthrough differs in one way, shape, or form. Games are dynamic and movies are static. It is very hard to meet everyone's expectation of a game's movie because everyone looks at a game in a different way (slight or major). It is also hard because the movie needs to appeal to the crowd of people who haven't played the game or it wouldn't sell well.
Common pitfalls of existing movies based on videogames?
The movie deviates from the lore of the game to make the viewing experience "better" or easier to understand
The movie alternates any plot point of the video game
The movie needs to cut out significant content because of timing
The movie fails to appeal to every possible crowd
How would you adapt the source material?
In an ideal world I would make the movie following the source material as much as possible, because to me it is important to preserve the original writers intention, tone, and themes.
Of course the ideal is not the best, the ideal would not sell because it would only truly appeal to fans of the source material
For the movie game to succeed it would need to be understandable enough to appeal to as much people as possible without having to do heavy digging, but also have things that the people who are familiar with the source material would appreciate
What videogame would you like to see in the big screen?
World of Warcraft - I know it is coming but I really want it to be good
Anything Metal Gear would be pretty cool as long as they don't ruin any of the story.
Something I actually want to see, but I know it probably wouldn't happen would be a counter strike movie that kind of mimics how the game plays but in a dramatic way