For box office, you should probably be looking down, Montgomery Scotty.

The fifth “Ice Age” movie, “Collision Course,” opened to shitty reviews (13% RT) and shitty box office ($21 mil, fifth place), which is the weakest opening for an “Ice Age” by far. The others opened between $41 and $68, and grossed between $161 and $196. “CC” will be lucky to top out at $100.

The third rebooted “Star Trek” movie, “Beyond,” opened to good reviews (84%) but so-so box office ($59 mil, first place), which is the weakest opening for a rebooted “Trek.” The others opened at $75 and $70. 

Oddly, this is probably worse news for “Trek.”

The “Ice Age”s make most of its money abroad. Chronologically: $206, $465, $690, and $715 million. So the bigger question for “Collision Course” is: How will it play in Bonn or Beijing? The answer, so far, is: not bad: $178 and counting.

I remember seeing the original “Star Trek” in reruns in Taiwan in the late 1980s (Spock's dubbed voice sounded like it was recorded in a big empty metal box), so it's obviously disseminated abroad. It's just not big abroad—grossing, internationally, $128 and $238 for “Star Trek” and “Into Darkness” respectively. It needs those U.S. dollars more. 

The poor opening of “IA” and “ST” continues a summer trend. Yes, the two top movies of the summer, “Finding Dory” and “Captain America: Civil War,” are both sequels, but after that it's originals or reboots. Most sequels are grossing only a fraction of what the previous film grossed:

* Believe it or not, that's unadjusted, so it's actually much, much worse.

I hope Hollywood execs are paying attention. Probably not.