Many thanks to R. for the link!
A feature length documentary, 21 Years: Richard Linklater, is currently in post production. The documentary appears to bean outgrowth of the tribute to Richard Linklater: A Slacker Turns 20 that took place in 2011 and was sponsored by Paste Magazine.
Wood Entertainment lists Matthew McConaughey, Ethan Hawke and Keanu Reeves as starring. The poster and trailer are here.
