Movie / Story Script about Time Travel

I am a huge fan of Back to the Future and Indiana Jones. I wrote this last night, sort of a beginning to a story. Wanted to get some reaction on whether this could be a good movie:

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In the dark California desert 60 miles east of Barstow, an older bearded man leaves a trail of footsteps, lighting his way ahead with a flashlight. He has a lab coat on and a low brimmed hat, to keep the desert sand out of his face. His 1957 Chevy Truck is parked at a distance. The truck has a small but sturdy trailer attached to it. It's a cold February night, with temperatures dipping below 50 degrees.
“About 200 feet more” mumbles the man, moving forward. He glances at an old-school compass as he continues. He looks up as a faint glow up appears up ahead.
A muffled beep comes from the man's pants. Still walking, he takes out a small radiation meter and looks at its small led screen. The meter shows a raised radiation level.
“Just as expected” … the old man continues, with the faint glow appearing larger, until he finally comes up to something.
The object towers over the man, as he comes up next to it. It's a rock …
The man's trembling hands come out of the pocket as he placed them lightly on the rocky surface.
“It's here …. the R27D meteorite … and it's just where they told me it would be … “ he whispered under his breath.

He walks back to the truck, puts keys in the ignition, and starts the vehicle. The murmur of the engine disturbs the quiet of the desert night. He backs the truck up to the to the meteorite and gets out. He walks around the rock, sizing it up. After a few moments, he puts on construction gloves, comes up to the rock and starts pushing on it in the direction of the truck. Surprisingly light, the rock rolls on to the trailer and rests on one of its flatter facets. The main closes up the tail gate. He steps back to look over things, exhales, then gets back into the truck.