“Ender’s Game” did not deliver the blockbuster weekend Summit might have hoped when they hurled an estimated $110 million at Orson Scott Card’s 1985 sci-fi novel.

$27.6 million isn’t exactly a bust. But considering the film did a vigorous $9 million+ on Thursday night and Friday, $30 million was expected. And they didn’t get there. Middling reviews didn’t help. Great reviews would have given it a shot, but seriously, it’s not anybody’s idea of a great film — even in a down year for science fiction at the movies.

“Last Vegas” did upper teens, which was predicted, based on the tracking. It should hold audience and make $50-75 million before Christmas.

“Bad Grandpa” gives Johnny Knoxville encouragement — just what we needed. It did another $20 million or so, a very healthy return on a no-cost gimmick/prank comedy that has a few laughs in it.

“Free Birds” did an anemic $16 million, and didn’t chase the crappy “Cloudy-Meatballs 2” out of the top ten. Bad news on both counts from two bad cartoons of fall.

“12 Years a Slave” is still in the top ten, despite the arrival of three new films that should have pushed it out of there. Good news for the Oscar chances of Steve McQueen’s searing story of slavery.