I usually despise re-makes; especially when the original film was a good 'un. There are, of course, exceptions to every rule and Invasion Of The Body Snatchers is mine. I *love* both versions and may even give Philip Kaufman's 1978 version a slight edge over Don Siegel's 1956 original, which is almost unprecedented for me.
Here's the 1956 trailer:
Here's the 1978 trailer: