Barry and the Dinosaur King

Left at home alone for the first time, Elian is looking forward to a lazy morning, with nothing more strenuous than reading a book. That is, until he finds a stranded alien sitting on his bed.
Ever the reluctant hero, Elian agrees to help Barry (not his real name. Even the Welsh would find Barry's full name difficult) get past the soldiers who are searching Bordeaux for him. Easy, you might think. Bordeaux is quite big, while an alien being and a thirteen year old boy are relatively small. But Captain Arman Durant is on their trail, desperate to make his mark and leave his boring office job behind him. Little does he realize he's about to see the action he's always wished for. But not with the United Nations or the French army. When Captain Durant finally catches up with Elian and Barry, he finds a lot of the action he's about to see involves rather large lizards with rather large teeth. And significantly larger brains.
Barry, Elian and Captain Durant are now in Bordeaux in another dimension—a dimension where dinosaurs still rule and revolution is in the air.
King Annax is having trouble with the Raptors and the Raptors are having trouble with the king. They don't want to be civilized and are quite content to eat the king's subjects. Barry, Elian and Captain Durant arrive just as things are about to get very nasty indeed.
Contains some violent scenes.