What movie is this?

The answer is clearly

Cars

Because

That is Lightning McQueen. He is pulling the train which is similar to the moment in the movie Cars when he has to pull the paver to pave the road. The train track is difficult terrain for the car, just like the unpaved road was for the car. The train is similar to the paver because it is a heavy thing you wouldn't expect for a car to pull.
The clock is symbolic. The first time McQueen paved the road he did it too quickly and messed up -- the second time he had to take his time. McQueen is literally bringing "time" with him in the picture.

A picture of the scene I am referring to:

This is correct and not a joke.

Is this

Back to the Future 3, specifically the finale where the train is pushing the car up to the correct speed.

The other clue I noted was the

clock on the car, which points to the Hill Valley clock tower, which was a focal point of the first movie.

It looks like

the Locomotive 131 from the movie Back to the future III :

It allowed

the Delorean to reach 88 mph, and enter temporal displacement before it crashed into a wooden "End of Track" barrier.

Also:

The clock on the picture is a reference to the time, which is the leitmotiv of the saga.

Toy reminds me of a scene from Antman.