All money laundering does is conceal the source of money and integrate it into the financial system. This can involve a successful or non-successful business venture. Every person you ever want a kickback from can be given a financial stake in a film. Take lebron. You can’t exactly take a paycheck for pushing Racial disharmony. However if i make a movie there is plausible deniability if i cut lebron a big check. Easy. This is why mike pence got a 4 million dollar book advancd. Thats just the star. Now if i wanted to give a kickback to say a judge for ruling a certain way i could give a friend of their friends law firm a role in the film as a consultant. Let them run up whatever legal fees i want. The favor trickles back to the judge through a network of corruption. We can make this as complicated and obfuscated as you would want. Point is that anytime you need to spread money or favors around where the reason and source of the money cannot be known, a film offers a great opportunity for this.