Complex sentence: Its 1974'Grizzly Adams' movie was a runaway success made for a budget of $140,000 before earning close to $45 million at the domestic box office and $65 million worldwide.
Split into simpler sentences: Its 1974'Grizzly Adams' movie was a runaway success. Produced on a small $140,000 budget, the film grossed over $45 million at the domestic box office and $65 million worldwide.