If you want a pair of really immersive headphones then I can wholeheartedly recommend the Ultrasone PRO 900. Some say that it has shrilling highs and overemphasized bass - and it's all true. But in the consideration of listening areas, which in this case is movies and games, then I think that the V-curve in the PRO900's frequency response fits really well with just movies and games - but that's my 2 cents.
The DT990, which some other have recommended, are similar in that they emphasize treble and bass, but its more treble oriented than bass oriented for the reason of it being an open headphone - but I found it to have slightly wider soundstage than the PRO900 by sacrificing the immense and powerful bass that the Ultrasones have. After trying them I never play any games without first plugging in the PRO900 - they bring forth an entirely new dimension to games like Battlefield 3 and even Skyrim. Movies is something entirely different though, personally I would prefer PRO900 for most action-packed movies, but if a film lacks such sonically dynamic scenes and puts emphasis on acting (ie lots of voices/dialogue) and music then I would rely on more laid-back headphones with open-end design. Overall however, Ultrasones brings that immersiveness in games especially with lots of explosions, roars and/or gunshots while emphasizing detail - but this detail we speak of may (depending on genre) be sibilant, so be wary of that. For music I found it only working for EDM and Dubstep but too shrill for other genres.
DT990 is a good allrounder, not too excessive treble, but they're still fairly bright. And all though they are a tad smoother they lack the immersiveness I found in PRO900 and the midrange representation in the HD650. But whatever you pick, amplification will be an important factor in all of it - even the low impedance phones PRO900 benefit greatly from it. If you're not going for amplification maybe the ATH-M50 may fit your bill more perfectly, they're also cheaper. But by all means, avoid the HD598 if you're looking for immersiveness - they are more transparent/neutral than the aforementioned cans.