NEXT BEST THING TO IMAX: One of the most beautiful and ambitious films ever made, Terrence Malick's coming-of-age saga "The Tree of Life" deserves to be seen beneath an IMAX dome. But if you don't have one at your house, the next best thing is the Blu-ray home-video release. In the ultra high-definition format, you might actually see the face of God in the sunlight beaming on a Texas family in the 1950s, and when Sean Penn asks in voiceover what it all means, you'll think it's coming from inside your own head. ($24.99) at amazon.com. By Joe Williams, film critic