LOS ANGELES — Disney on Tuesday posted second-quarter earnings that beat Wall Street forecasts, helped by the home video sales of blockbuster movies “Frozen” and “Thor: The Dark World.”

Both films showed the power of buying multibillion-dollar content brands. “Thor” comes from Disney’s $4 billion purchase of Marvel Entertainment in 2009.

Net income in the three months through March jumped 27 percent to $1.92 billion, or $1.08 per share, from $1.51 billion, or 83 cents per share, in the same period a year ago.