Susie Wheldon on Her Husband Dan’s Legacy

The new documentary The Lionheart concerns a heavy parental quandary: What happens when a child pursues the occupation that took the life of his father?

As expected, it’s quite complicated. The Lionheart centers around Susie Wheldon, widow of the late race-car driver Dan Wheldon, the charismatic Brit who won a pair Indy 500 titles in 2005 and 2011. Wheldon died, at 33, after a horrific 2011 crash during a race at the Las Vegas Motor Speedway, a mile-and-a-half oval track more suited to stock-car racing (IndyCar has never returned to the venue since the accident). …