Clint Eastwood‘s “Changeling”  found huge numbers amidst an impressive crowd of weekend openers, according to initial estimates from Rentrak early this afternoon. The Universal release grossed $501,615 from just 15 screens, averaging $33,441.  That’s a little less than double what Eastwood’s last film, 2006’s “Letters From Iwo Jima,” averaged in its first weekend. Considerably more surprising, though, was the film that fell just behind “Changeling.” “Noah’s Arc: Jumping the Broom” is the film adaptation of the Logo series, and the first film release through Logo’s film distribution unit.