The Hunger Games return with such a sequel twist that you can't believe writer Suzanne Collins didn't think of film when writing. Catching Fire builds up with all types of subversive messaging which is interesting but also brings into relief the limitations of the genre and film.
The second Predator movie is set in a backdrop of urban drug warfare. Maverick cop Mike Harrigan(Danny Glover) goes up against a new kind of killer. But when the Feds(Gary Busey,Adam Baldwin) arrive it's clear there's more going on.
A xenomorph skull (the creature from the Alien movies) appears on the wall of the Predator's trophy room. This is nod to the 'Alien Versus Predator' 1989 comic series from Dark Horse comics, hinting the possibly of a future film crossover, which eventually did happen.