Pour le meilleur et pour de faux

The romantic comedy (Brazil) has a very predictable story line - the rich bachelor that never gets romantically involved with woman for more than 3 months, and his dying mother wants him to get married before she dies in 6 months. He hires an actress to pose as his girlfriend/fiance but he develops real love feelings for her - while still in a relationship with another girl. The only thing is that there is one twist in the story which is kind of surprising, but not shocking, therefore still predictable because they had to have some kind of a twist to shake things up a little bit. The actual ending was predictable as well.