Article continues below advertisementBarry Keoghan has become the latest face of Hollywood's growing "Brotox boom," as experts warn OK! the trend for male fillers is leaving some leading men with what critics are calling a "bloated rodents" look.Keoghan, 33, sparked fresh speculation about his appearance at the New York premiere of The Peaky Blinders: The Immortal Man, where observers noted a fuller, softer appearance compared with earlier roles.