Horned lizards dressed as Aztecs fight Cane Toad conquistadores in the Spanish conquest of Mexico.

Western Green Lizard eating a moth in a nature documentary esque scene - also quite a lot of lizard symbolism throughout 

A Harvard scientist eats some Mexican magic mushrooms and hallucinates a bunch of lizards including a Spiny Lizard and Monitor Lizards (including a dead and disembowelled one)

An evil drug lord carries around an iguana that wears a diamond studded collar.

A young boy carries a horned lizard in his pocket, and enjoys catching other lizards, snakes and frogs.
A kind-hearted cowboy offers to swap his dog to a young boy in return for the boy's pet horny toad and a home-cooked meal.

An old Indian man gives Josey Wales a horned lizard that told him they should go to Mexico.

A deadly poisonous Green Iguana kills a man at a carnival then is stolen in an attempt to kill another man.

Many many reptiles in this one, lizards include Green Anoles and Tokay Geckos on top of a dead body and then some scenes with Black and White Tegus

Nicolas Cage imagining an Iguana and a Bearded Dragon

A cowboy riding a horse leans over and grabs a Texas Horned Lizard off the ground without stopping.

A giant Red Tegu tries to eat some explorers 

An alcoholic's delirium includes Uromastyx and Iguanas

A guy visits his quirky brother to find him in a bush videotaping Green Anoles

Many lizards like Green Iguana’s, Western Skinks and a Tegu

Jafa Panahi’s Green Iguana named Igi walking around his gaff 

A Blue Tongued Skink sits on a desk at a train station.

A drunk hallucinates a Green Iguana on his shelf and a Gila Monster on his cellar stairs.

Hunters in an Africa jungle pass through a staming swamp full of man-eating iguanas. Two of them fall in and are eaten alive by the hideous monsters.

Two boys chase their ma with a Texas Alligator Lizard

A young film student is hired to pick up something that turns out to be a live Komodo Dragon

A Gila Monster crawls under the rock where Bogart hid his treasure

A boy walking in the Mexican countryside catches a horned lizard.

Gila Monster and a Chuckwalla in Death Valley

Sarah Connor has a pet iguana named Pugsley

Jackson’s Chameleon in the forrest 

Smokey has a pet Iguana in his room 

opening shot of the film is a Mexican Alligator Lizard (Abronia)