charlie: "room" is a new film from lenny robinson.mother and son have been held captive in a shed for years. "room" is adopted from a novel of the same name. calls the film a suspenseful and heartwarming drama that finds the most extreme metaphor for how time, regret, and the end of childhood can make unknown captives of us all. here is the trailer for "room." >> ♪ one evening when the sun went down ire was jungle f burning ♪ ♪ down the tracks came a hobo hiking he said boy, i'm not turning ♪ ♪ i'm headed for a land that is far away ♪ >> i guess they still can't hear us. >> do you remember how alice wasn't always in wonderland? >> she fell down in a hole. >> i wasn't always in "room."...... -- >> i'm scared. >> wiggle out. >> jump. >> jump. >> run. >> run. >> ♪ the big rock candy mountain where the land is clear and bright ♪ >> you are going to love it. joining me now, two of the film's stars, brie larson and joan allen, lenny abramson, and emma donoghue. this is a remarkable achievement. congratulations to all of you. there is so muc