HD playback quality

[mac2thefuture]

Hello, i've got a new 27" iMac.

I've played some trailers of HD movies from iTunes and the quality is pretty rubbish.

Whats the best resolution to watch HD movies on an iMac?
Are the trailers you get on iTunes real HD?

Thanks

 

[simsaladimbamba]

Tried trailers on trailers.apple.com in 1080p yet?

 

[mac2thefuture]

Tried trailers on trailers.apple.com in 1080p yet?

That is acceptable

So, will all HD movies hired/bought from iTunes be like that?