How many votes does it take to change the articles in the articles of confederation?

The Constitution provides that an amendment may be proposed either by the Congress with a two-thirds majority vote in both the House of Representatives and the Senate or by a constitutional convention called for by two-thirds of the State legislatures.

I remember watching this movie a couple of years ago, and I think the answer could be that the main character was forced to make a living out of boxing. And the desperation he had to go through was if he didn’t win any money, than he wouldn’t have been able to pay for things. Sorry I couldn’t be more thorough, but like I said, I haven’t watched the movie in years.